diff --git a/src/filesystem-utils.lisp b/src/filesystem-utils.lisp
index 96bfa10..b1805d1 100644
--- a/src/filesystem-utils.lisp
+++ b/src/filesystem-utils.lisp
@@ -166,8 +166,9 @@
   (nix:s-isreg (nix:stat-mode (nix:stat path))))
 
 (defun dirp (path)
-  (and (nix:stat path)
-       (nix:s-isdir (nix:stat-mode (nix:stat path)))))
+  (ignore-errors
+   (and (nix:stat path)
+        (nix:s-isdir (nix:stat-mode (nix:stat path))))))
 
 (defun split-path-elements (path)
   (cl-ppcre:split *directory-sep-regexp* path))
diff --git a/src/iri-parser.lisp b/src/iri-parser.lisp
index 071e15f..da36ddb 100644
--- a/src/iri-parser.lisp
+++ b/src/iri-parser.lisp
@@ -83,8 +83,10 @@
 (defrule scheme (and alpha (* (or alpha  digit  "+"  "-"  "." )))
   (:text t))
 
-(defrule ihier-part  (and iauthority-start iauthority)
-  (:function second))
+(defrule ihier-part (or (and iauthority-start iauthority ipath-abempty)
+                        ipath-absolute ; text
+                        ipath-rootless ;text
+                        ipath-empty)) ;text
 
 (defrule user-credentials (and iuserinfo credential-delim)
   (:function first))
@@ -169,21 +171,28 @@
   (:text t))
 
 (defun extract-fields-from-absolute-iri (parsed)
-  (let ((authority (third parsed)))
-    (list (first  parsed)    ; scheme
-          (first  authority) ; user-credentials
-          (second authority) ; host
-          (third  authority) ; port
-          (fourth parsed)    ; path
-          (fifth  parsed)    ; iquery
-          (sixth  parsed)))) ; ifragment
+  (let* ((scheme           (first parsed))
+         (ihier-part       (third parsed))
+         (authority        (when (consp ihier-part)
+                             (second ihier-part)))
+         (user-credentials (first authority))
+         (host             (second authority))
+         (port             (third authority))
+         (ipath            (if (consp ihier-part)
+                               (third ihier-part)
+                               ihier-part))
+         (iquery           (fourth parsed))
+         (ifragment        (fifth  parsed)))
+    (list scheme
+          user-credentials
+          host
+          port
+          ipath
+          iquery
+          ifragment)))
 
 (defrule iri (and scheme ":"
                   ihier-part
-                  (or ipath-abempty
-                      ipath-absolute
-                      ipath-noscheme
-                      ipath-empty)
                   (? iquery)
                   (? ifragment))
   (:function extract-fields-from-absolute-iri))
diff --git a/src/tests/iri-tests.lisp b/src/tests/iri-tests.lisp
index 117c29d..8f89162 100644
--- a/src/tests/iri-tests.lisp
+++ b/src/tests/iri-tests.lisp
@@ -61,7 +61,11 @@
     ("http://" .
      ("http" nil nil nil nil nil nil))
     ("http" .
-     (nil nil nil nil "http" nil nil))))
+     (nil nil nil nil "http" nil nil))
+    ("tel:+31-thisiisnotanumber" .
+     ("tel" nil nil nil "+31-thisiisnotanumber" nil nil))
+    ("mailto:name@localhost.localdomain" .
+     ("mailto" nil nil nil "name@localhost.localdomain" nil nil))))
 
 (deftest test-parsing (iri-suite)
   (loop for (a . b) in *test-cases* do
diff --git a/src/tests/uri-tests.lisp b/src/tests/uri-tests.lisp
index 58e927d..b75a5b5 100644
--- a/src/tests/uri-tests.lisp
+++ b/src/tests/uri-tests.lisp
@@ -52,9 +52,6 @@
      (nil nil nil nil "http" nil nil))
     ("http://" .
      ("http" nil nil nil nil nil nil))
-    ;; are these valid URI?
-    ;; ("tel:+31-641044153" .
-    ;;  ("tel" nil nil "+31-641044153" nil nil))
     ;; ("http:" .
     ;;  ("http" nil nil nil nil nil))
     ("ldap://[2001:db8::7]/c=GB?objectClass?one" .
diff --git a/src/uri-parser.lisp b/src/uri-parser.lisp
index 086604b..320bd5d 100644
--- a/src/uri-parser.lisp
+++ b/src/uri-parser.lisp
@@ -17,6 +17,8 @@
 
 (in-package :uri-parser)
 
+;; NOTE: the parser is broken, use :iri-parser, instead
+
 (define-constant +segment-separator+ "/" :test #'string=)
 
 (defrule alpha (character-ranges (#\a #\z) (#\A #\Z))